2006 Mercedes C-Class Owner's Manual - Page 107

Controls in detail Locking and unlocking Illumination of the emergency release button: The button flashes 30 minutes after opening the trunk. The button flashes 60 minutes after closing the trunk. i If the vehicle has previously been locked with the SmartKey, opening the trunk from the inside using the emergency release button will trigger the anti-theft alarm system*. To cancel the alarm, do one of the following: Press button Œ or ‹ on the SmartKey. Insert the SmartKey in the starter switch. Valet locking i To deny any unauthorized person access to the trunk, lock it separately with the mechanical key. Leave only the SmartKey less its mechanical key with the vehicle. The lock is located next to the handle above the rear license plate recess. i The emergency release button unlocks and opens the trunk while the vehicle is standing still or in motion. i The emergency release button does not open the trunk lid if the vehicle battery is discharged or disconnected. 1 Neutral position 2 Locked Close the trunk ( page 104). 106